What energy storage systems are available?
There are different types of energy storage. Short-term storage devices, such as batteries, bridge the periods when the sun is not shining or the wind is not blowing by the hour or day. Batteries are already being used in private households and businesses. However, much larger storage facilities are required for urban centres and industry.
Pumped storage power plants compensate for the daily strong fluctuations in electricity consumption. They fill the higher-lying storage lakes with cheap night-time electricity and thus use electricity sensibly. During the day, the water is drained via turbines and fed into the grid as expensive peak electricity. In the long term, this solution is too expensive and the capacity is too small for the energy production infrastructure that was greatly expanded after the energy turnaround.
In the future, artificially produced gases, liquids or chemicals will serve as energy stores – so-called Power-to-X technologies (PtX).
Methanol is a liquid, universal and synthetically produced energy storage medium. It is produced with electricity from renewable sources and is 100 percent biodegradable. Methanol can be used in all areas of application. This makes the energy source extremely economical and attractive.